News
- Life
Complex life hit freshwater early
Tiny fossils in Scottish rock show that cells with nuclei had spread beyond the seas by a billion years ago.
- Earth
Seismologists rumble over quake clusters
Japan tremor may be part of a second grouping of great quakes since 1900, some scientists say.
- Life
Gone fishing, orangutan-style
Apes that catch fish in ponds and eat them raise the possibility that ancient hominids did the same.
- Physics
Time travel nixed in metamaterial world
A desktop universe captures essential properties of the real thing.
- Physics
How bicycles keep the rubber on the road
An international collaboration tries to explain the surprising stability of two-wheeled travel.
